Fish tank water changing device capable of improving water changing efficiency
By adding an air vent plug inside the aquarium water changer, the volume of the inner chamber for water changing is reduced, air is quickly expelled, the problem of low water changing efficiency is solved, and the user experience of the water changer is improved.
Patent Information
- Application Number
- CN202520148182.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-22
AI Technical Summary
In traditional aquarium water changers, the water changing chamber connected to the water changing air bladder is relatively large, resulting in a small pressure difference, low water changing efficiency, and a poor user experience.
Adding an air vent plug inside the water changer reduces the volume of the water changer's internal cavity, allowing air to be quickly expelled through the air vent plug, thus improving the siphon effect.
It improves water change efficiency and enhances the user's water change experience.
Smart Images

Figure CN223772845U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of aquarium water changers, and specifically relates to an aquarium water changer that can improve water changing efficiency. Background Technology
[0002] As people's living standards improve, keeping goldfish and other aquarium pets has gradually become a popular activity for home enjoyment and leisure. Considering the need to remove dirty water containing excrement from the aquarium and the fish's sensitivity to water quality, the water in the aquarium needs to be changed regularly.
[0003] Traditional water changers use the siphon principle to change the water. People usually use the air bladder to expel the air from the water changer and then empty the water from the aquarium.
[0004] However, the water exchange chamber connected to the water exchange airbag in traditional water exchangers is relatively large, and the exhaust volume of the handheld water exchange airbag is limited, resulting in a small pressure difference after pressing the water exchange airbag, which leads to low water exchange efficiency and reduces the user experience of the water exchanger. Utility Model Content
[0005] The main purpose of this utility model is to provide a fish tank water changer that can improve water change efficiency, in order to solve the technical problem of small water change air bladder and low water change efficiency.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] A fish tank water changer that can improve water changing efficiency includes: a water changer body and a water changing airbag installed in the water changer body; the water changer body has a water changing inner cavity, and an air vent plug is provided in the water changing inner cavity, the outer side of the air vent plug being in sealed contact with the inner wall of the water changing inner cavity; wherein, the water changing airbag is installed at one end of the air vent plug and communicates with the water changing inner cavity through an air venting channel in the air vent plug.
[0008] Preferably, the vent plug includes: a plug body and an airbag mounting nozzle connected to the plug body, wherein the water-changing airbag is mounted on the airbag mounting nozzle; both ends of the plug body are provided with annular grooves for mounting sealing rings; the shape of the plug body is adapted to the shape of the water-changing inner cavity; after the plug body is accommodated in the water-changing inner cavity, both ends of the plug body form a sealed contact with the inner wall of the water-changing inner cavity through the sealing rings.
[0009] Preferably, the plug body has an inwardly recessed mounting groove at one end facing the water-changing airbag, and the airbag mounting nozzle is located at the bottom of the mounting groove; the airbag mounting nozzle and the inner wall of the mounting groove are spaced apart to form an annular receiving space; the air outlet of the water-changing airbag is sleeved on the outside of the airbag mounting nozzle and extends into the annular receiving space.
[0010] Preferably, an abutting plane is formed between the air outlet of the water-changing airbag and the airbag body, and an annular step is provided in the mounting groove corresponding to the position of the abutting plane; after the water-changing airbag is installed on the airbag mounting nozzle, the annular step of the mounting groove supports the abutting plane of the water-changing airbag.
[0011] Preferably, the plug body has a hollow structure, and the bottom of the mounting groove has a through hole. The airbag mounting nozzle is connected to the internal channel of the plug body through the through hole. The airbag mounting nozzle and the internal channel of the plug body are connected to form the exhaust channel of the exhaust plug.
[0012] Preferably, the vent plug is installed in the handheld part of the water changer body, the part of the water changer airbag extending into the handheld part is connected to the vent plug, and the remaining part of the water changer airbag extends out of the handheld part for the user to press the water changer airbag.
[0013] Preferably, a decorative ring is provided at the end of the handle of the water changer. The decorative ring is disposed close to the inner wall of the handle and is arranged around the outside of the water change airbag. The handle has at least one decorative groove at the position corresponding to the decorative ring, through which the decorative ring can be seen.
[0014] Preferably, the water exchanger body is further provided with an inlet and an outlet communicating with the water exchange inner cavity, the inlet is equipped with an inlet pipe, and the outlet is equipped with an outlet pipe; a one-way valve is installed at both the inlet and the outlet.
[0015] Preferably, a water outlet switch is also provided at the water outlet, which is used to close or open the water outlet.
[0016] Preferably, a filter element is also provided at the water inlet, the filter element being used to filter the water drawn into the aquarium water changer.
[0017] The beneficial effects of this utility model are:
[0018] In this invention, an exhaust plug is added to the inner cavity of the water exchanger to reduce the volume of the inner cavity and the amount of air inside. When the user presses the air bladder, the air inside the water exchanger can be expelled more quickly through the exhaust plug, achieving a rapid siphon effect and improving the user experience. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and all of them fall within the protection scope of this utility model.
[0020] Figure 1 This is a structural schematic diagram of the fish tank water changer of this utility model;
[0021] Figure 2 yes Figure 1 A partial sectional view of the aquarium water changer shown;
[0022] Figure 3 yes Figure 1 A cross-sectional view of the vent plug in the aquarium water changer shown;
[0023] Figure 4 yes Figure 3 The diagram shows the structure of the exhaust plug. Detailed Implementation
[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. It should be noted that, without conflict, the various features in the embodiments of the present invention can be combined with each other, and the combined embodiments are still within the protection scope of the present invention.
[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a fish tank water changer that improves water changing efficiency includes: a water changer body 10, an vent plug 20, a water changing airbag 30, an inlet pipe 40, and an outlet pipe 50. The water changer body 10 has a water changing inner cavity 101. The vent plug 20 is housed within the water changing inner cavity 101. The water changing airbag 30 is installed at one end of the vent plug 20 and connects to the water changing inner cavity 101 through an venting channel within the vent plug 20. The inlet pipe 40 is installed at the inlet of the water changer body 10, and the outlet pipe 50 is installed at the outlet of the water changer body 10. In this embodiment, the water changing airbag 30 is a press-type airbag.
[0027] The water changer body 10 is provided with a handle 11, and the water change airbag 30 is installed at the end of the handle 11 for the user to press. The vent plug 20 is located at the handle 11 and is directly connected to the vent nozzle 31 of the water change airbag 30. Specifically, the portion of the water change airbag 30 extending into the handle 11 is connected to the vent plug 20, and the remaining portion of the water change airbag 30 extends out of the handle 11 for the user to press. The portion of the water change airbag 30 extending into the handle 11 ensures that the water change airbag 30 is confined within the handle 11 during pressing, preventing lateral movement and ensuring the stability of the water change airbag 30 during pressing.
[0028] The vent plug 20 includes a plug body 21 and an airbag mounting nozzle 22 connected to the plug body 21, with the water exchange airbag 30 mounted on the airbag mounting nozzle 22. Both ends of the plug body 21 have annular grooves 2101 for mounting sealing rings. The shape of the plug body 21 is adapted to the shape of the water exchange cavity 101. After the plug body 21 is accommodated in the water exchange cavity 101, both ends of the plug body 21 form a sealing contact with the inner wall of the water exchange cavity 101 through the sealing rings. Furthermore, a concave annular groove 2102 is formed between the sealing positions formed by the two annular grooves 2101 of the plug body 21, which reduces the thickness of the plug body 21.
[0029] To ensure a more airtight seal when installing the water-changing airbag 30, the plug body 21 has an inwardly recessed mounting groove 201 at one end facing the water-changing airbag 30, and the airbag mounting nozzle 22 is located at the bottom of the mounting groove 201. The airbag mounting nozzle 22 and the inner wall of the mounting groove 201 are spaced apart to form an annular receiving space; the air outlet 31 of the water-changing airbag 30 is fitted onto the outside of the airbag mounting nozzle 22 and extends into the annular receiving space.
[0030] To facilitate smoother pressing of the water-changing airbag 30, a contact surface 301 is formed between the air outlet 31 and the airbag body 32. The mounting groove 201 has an annular step 23 corresponding to the contact surface 301. After the water-changing airbag 30 is installed on the airbag mounting nozzle 22, the annular step 23 of the mounting groove 201 supports the contact surface 301 of the water-changing airbag, making it easier and smoother to press the airbag 30 during pressing.
[0031] In this embodiment, the plug body 21 is generally cylindrical, forming a through internal channel. The bottom of the mounting groove 201 is provided with a through hole 202, and the airbag mounting nozzle 22 is connected to the internal channel of the plug body 21 through the through hole 202 to form the exhaust channel of the exhaust plug 20.
[0032] The main function of the vent plug 20 is to reduce the volume of the water exchange chamber 101 and reduce the air in the water exchange chamber 101. When the user presses the water exchange airbag 30, the air in the water exchanger can be expelled more quickly through the vent plug 20, thereby achieving a siphon effect and improving the user experience.
[0033] In this embodiment, a one-way valve 60 is installed at both the inlet and the outlet. A water outlet switch 70 is also provided at the outlet, used to close or open the outlet. A filter element 80 is also provided at the inlet, used to filter the water drawn into the aquarium water changer.
[0034] Furthermore, to enhance the aesthetics of the water changer, a decorative ring 12 is provided at the end of the handle portion 11. The decorative ring 12 is fitted tightly against the inner wall of the handle portion 11 and surrounds the outer side of the water-changing airbag 30. The handle portion 11 has at least one decorative groove 1101 corresponding to the decorative ring 12, through which the decorative ring 12 can be seen. It should be understood that the color of the decorative ring 12 can be adjusted arbitrarily to further enhance the aesthetics of the water changer.
[0035] In this embodiment, the vent plug 20 is added inside the water exchange chamber 101 of the water exchanger to reduce the volume inside the water exchange chamber 101 and reduce the air inside the water exchange chamber 101. When the user presses the water exchange airbag 30, the air inside the water exchanger can be expelled more quickly through the vent plug 20, thereby quickly achieving a siphon effect and improving the user experience.
[0036] The present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments can be made without departing from the principles and spirit of the present invention, and these changes still fall within the protection scope of the present invention.
Claims
1. A fish tank water changer that can improve water change efficiency, characterized in that, include: The water changer body and the water changer airbag installed on the water changer body; The water changer body has a water exchange inner cavity, and the water exchange inner cavity is provided with an exhaust plug. The outer side of the exhaust plug is in sealing contact with the inner wall of the water exchange inner cavity. The exhaust plug includes: a plug body and an airbag mounting nozzle connected to the plug body. The water exchange airbag is mounted on the airbag mounting nozzle. The water-changing airbag is installed at one end of the vent plug and connects to the water-changing inner cavity through the vent channel inside the vent plug. Both ends of the plug body are provided with annular grooves for installing sealing rings. The shape of the plug body is adapted to the shape of the water-changing inner cavity. After the plug body is accommodated in the water-changing inner cavity, both ends of the plug body form a sealed contact with the inner wall of the water-changing inner cavity through the sealing rings.
2. The aquarium water changer as described in claim 1, characterized in that, The plug body has an inwardly recessed mounting groove at one end facing the water-changing airbag, and the airbag mounting nozzle is located at the bottom of the mounting groove; The airbag mounting nozzle and the inner wall of the mounting groove are spaced apart to form an annular receiving space; The air outlet of the water-changing airbag is fitted outside the airbag mounting nozzle and extends into the annular receiving space.
3. The aquarium water changer as described in claim 2, characterized in that, The air outlet of the water-changing airbag and the airbag body form an abutting plane, and the mounting groove is provided with an annular step at the position corresponding to the abutting plane; The water-changing airbag is installed after the airbag mounting nozzle is installed, and the annular step of the mounting groove supports the contact plane of the water-changing airbag.
4. The aquarium water changer as described in claim 2, characterized in that, The plug body is a cylindrical structure, and a through hole is provided at the bottom of the mounting groove. The airbag mounting nozzle is connected to the internal channel of the plug body through the through hole. The airbag mounting nozzle and the internal channel of the plug body are connected to form the exhaust channel of the exhaust plug.
5. The aquarium water changer as described in claim 1, characterized in that, The vent plug is installed in the handheld part of the water changer body. The part of the water changer airbag that extends into the handheld part is connected to the vent plug. The remaining part of the water changer airbag extends out of the handheld part for the user to press the water changer airbag.
6. The aquarium water changer as described in claim 5, characterized in that, A decorative ring is provided at the end of the handle of the water changer. The decorative ring is set close to the inner wall of the handle and is arranged around the outside of the water change airbag. At least one decorative groove is formed on the handle at the position corresponding to the decorative ring, and the decorative ring can be seen through each decorative groove.
7. The aquarium water changer as described in claim 1, characterized in that, The main body of the water changer is also provided with an inlet and an outlet that communicate with the inner cavity of the water changer. The inlet is equipped with an inlet pipe and the outlet is equipped with an outlet pipe. Both the inlet and outlet are equipped with one-way valves.
8. The aquarium water changer as described in claim 7, characterized in that, A water outlet switch is also provided at the water outlet, which is used to close or open the water outlet.
9. The aquarium water changer as described in claim 7, characterized in that, A filter element is also provided at the water inlet, which is used to filter the water drawn into the aquarium water changer.